Procurement teams shortlist PR12-4AO with Autonics Photoelectric Sensor, Contrinex Proximity Sensor and Autonics Tcn4 Series, aligning budget approvals, warranty terms, and multisite availability for smoother rollout across plants.
Autonics PR12-4AO Proximity Sensor
The Autonics PR12-4AO Proximity Sensor offers a 4mm sensing distance with Normally Open output and a compact M12 sensing side diameter for precise and stable detection. Manufactured by Autonics, this proximity sensor from the PR Series provides reliable performance with hysteresis max. 10 of sensing distance and a standard sensing target 12Γ12Γ1mm (iron). It operates on an AC 2-wire type 100β240VAC~ supply, supports up to 20Hz response frequency, and ensures long-term durability with IP67 protection for industrial use.
| Brand | Autonics |
| Product Type | Proximity Sensor |
| Model Number | PR12-4AO |
Autonics PR12-4AO Proximity Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Sensing side diameter | M12 |
| Sensing distance | 4mm |
| Hysteresis(distance) | Max. 10% of sensing distance |
| Standard sensing target | 12Γ12Γ1mm(iron) |
| Current specification | Leakage current: Max. 2.5mA |
| Control output | Normally Open |
| Wire type and power | AC 2-wire type100-240VAC~ |
| Installation | Non-flush |
| Cable Standard/material | Standard cable |
| Body length | Standard type |
| Insulation type | Double insulation or reinforced insulation(mark: @(INS), dielectric strength between the measuring input part and the power part: 1kV) |
| Residual voltage | Max. 10V |
| Environment_Ambient temperature | -25 to 70β, storage: -30 to 80β |
| Environment_Ambient humidity | 35 to 95% RH, storage: 35 to 95% RH |
| Protection structure | IP67(IEC standard) |
| Material | Brass(nickel plated) |
| Response frequency | 20Hz |
| Weight | Approx. 84g(approx. 66g) |
The Autonics PR12-4AO Proximity Sensor from the PR Series is an AC-operated cylindrical inductive sensor offering a 4mm sensing range and Normally Open output. Powered by 100β240VAC, it provides reliable detection performance for various automation systems. The nickel-plated brass construction ensures excellent durability, while IP67-rated protection guards against oil and dust ingress. With a 20Hz response frequency and reinforced insulation, the Autonics PR12-4AO guarantees stable, safe, and long-term operation for proximity detection in industrial automation and production control systems.
In industrial automation, the Autonics PR12-4AO is widely used in packaging systems, robotic equipment, and material handling machinery requiring precise AC-powered detection. Its 4mm sensing distance and Normally Open configuration make it suitable for activating signals or initiating control functions when metallic targets are detected. The IP67 sealing ensures dependable operation even in dusty or oily environments, while the nickel-plated brass housing offers strong resistance to mechanical stress. The Autonics PR12-4AO Proximity Sensor is ideal for OEMs, system integrators, and machine builders seeking reliable, AC-based proximity sensing solutions that perform consistently under demanding industrial conditions.
The Autonics PR12-4AO reflects the trusted quality of Autonics Corporation, a globally recognized leader in industrial sensing and control technology. Developed under strict ISO and IEC compliance, the PR Series is known for its durability, electrical safety, and precision in detection performance. Autonics proximity sensors are widely used by engineers across the world for their consistent output and reliability in complex industrial environments. The PR12-4AO embodies Autonicsβ engineering excellence, providing stability, robust construction, and superior insulation performance in AC-powered control systems used throughout India.
Within the Autonics PR Series, the PR12-4AO represents the AC Type, Normally Open configuration designed for control applications requiring signal activation upon metal detection. For automation systems that need reverse logic operation, the compatible variant is the Autonics PR12-4AC Proximity Sensor, featuring a Normally Closed output while maintaining the same 4mm sensing range, 100β240VAC operation, and IP67-rated housing. Both models share identical mechanical design, insulation standards, and environmental protection. The Autonics PR12-4AO Proximity Sensor remains the preferred choice for Normally Open configurations in AC-powered control systems, offering flexibility and long-term reliability within the PR Series product line.
The Autonics PR12-4AO Proximity Sensor combines reliable metal detection, IP67-grade protection, and AC power compatibility for efficient operation in industrial automation systems. With its 4mm sensing distance and Normally Open output, it delivers consistent performance in challenging environments. Backed by Autonics Corporationβs engineering expertise and strong global reputation, the PR12-4AO is trusted by engineers and system integrators across India for dependable, long-lasting sensing accuracy in automated control applications.
Autonics PR12-4AO People Also Asked Questions
What is the sensing range and operating voltage of the Autonics PR12-4AO Proximity Sensor?
The Autonics PR12-4AO Proximity Sensor offers a sensing distance of 4mm, designed for reliable metal detection in industrial automation environments. It operates on an AC 2-wire system (100β240VAC) and features a Normally Open (NO) output, activating when a metallic object enters the sensing area. The non-flush installation design ensures a longer detection range and enhanced sensitivity, making it suitable for diverse industrial applications.
How reliable is the Autonics PR12-4AO in harsh industrial conditions?
Built for long-term durability, the Autonics PR12-4AO features a nickel-plated brass body that provides resistance to impact, corrosion, and oil. It includes double or reinforced insulation for electrical safety, offering dielectric strength up to 1kV between the power and measuring sections. With an IP67 protection rating, the sensor is dust-tight and resistant to temporary water immersion. It performs efficiently under ambient temperatures of -25Β°C to 70Β°C and humidity levels of 35β95% RH, ensuring stability in demanding factory conditions.
What are the typical applications of the Autonics PR12-4AO Proximity Sensor?
The Autonics PR12-4AO is commonly used in AC-powered automation systems, conveyors, metal detection setups, and packaging machinery. Its M12 cylindrical design allows easy installation in compact spaces, while the 20Hz response frequency ensures quick and reliable object detection. This sensorβs low leakage current (Max. 2.5mA) and stable switching performance make it a preferred choice for AC control circuits in various Indian manufacturing and industrial environments.
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